The paper says the world is "watching" as Indians prepare to choose a new government.

"The big, fat Indian elections begin today and the world is watching - not without reason, though: There are 814 million registered voters - a figure that has increased by 100 million since 2009," the paper says.

Meanwhile, papers see the election as primarily a presidential-style contest between the BJP's prime ministerial candidate Narendra Modi and Congress vice-president Rahul Gandhi.

The BJP is believed to hold an advantage against the ruling Congress which has been afflicted with many corruption allegations in recent years.

"The first Indians cast their votes in the world's biggest election on Monday with Hindu nationalist opposition candidate Narendra Modi seen holding a strong lead," the DNA newspaper says.

However, with 543 seats to fight for and several regional parties in the fray, poll results remain very difficult to predict.

India's lower house of parliament, the Lok Sabha, has 543 elected seats. Any party or coalition needs a minimum of 272 MPs to form a majority government.

BJP-TDP alliance

Meanwhile, reports say the Telugu Desam Party (TDP) in southern India has joined the BJP-led coalition.

The two parties will support each other to try and win maximum seats in Andhra Pradesh and Telangana states.

"As per the seat-sharing arrangement arrived between BJP and TDP, the BJP will contest five Lok Sabha seats and 15 assembly seats in Seemandhra (Andhra Pradesh) and eight Lok Sabha seats and 47 assembly segments in Telangana," The Times of India reports.

The NDTV website says "the partnership…could propel the Modi-led BJP closer to the 272 seats it needs to form the next national government".

Votes will be cast for Telangana's 17 seats on 30 April, and Andhra Pradesh's 25 constituencies will go into polls on 7 May.